Welding die

Abstract

The utility model discloses a welding die, which relates to the technical field of welding and comprises an upper top plate and a lower bottom plate, the upper top plate is arranged at the upper end of the lower bottom plate, and a first to-be-welded part and a second to-be-welded part are placed between the upper top plate and the lower bottom plate; the first bolt is in threaded connection with one end of the lower bottom plate through one end of the upper top plate, the second bolt is in threaded connection with the other end of the lower bottom plate through the other end of the upper top plate, and the first bolt and the second bolt are used for attaching and fixing the first to-be-welded part and the second to-be-welded part. The to-be-welded steel can be fixed through the upper top plate, the lower bottom plate, the first bolts and the second bolts, the beneficial effects of being convenient to use, high in sensitivity and easy to operate are achieved, and the welding problem caused when the steel is manually clamped is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding mould. Background Art

[0002] As infrastructure construction is developing in full swing, the safety of buildings is becoming more and more widely concerned by the public. As an important part of hydropower projects, the reliability and safety of hydraulic metal structures are the decisive factors for the normal operation of the project. At the same time, their operation quality is directly related to the safety of water conservancy and hydropower project buildings and downstream towns, the comprehensive effects of water conservancy and hydropower, and the safety of life and property of the people in the reservoir area and social stability. Hydraulic metal structures mainly include gates, valves, trash racks, pressure steel pipes, garbage cleaning machines, hoists and ship lifts, etc. They are important components of hydraulic and hydropower structures and are responsible for flood control, irrigation, water diversion and power generation, water supply, shipping and other control tasks of the project. In view of the important role of metal structures in water conservancy and hydropower projects, it is particularly important to ensure the strength of metal structures.

[0003] For hydraulic metal structures, welding is a common metal processing method widely used in the construction process. In the existing metal welding process, the steel is often reinforced manually, and the steel is welded without reinforcement, resulting in insufficient contact between the two welding surfaces, resulting in unfused and incomplete welding of the welding contact surfaces, deteriorating the strength of the welded joint, and ultimately having an adverse effect on the performance of the welded joint. Utility Model Content

[0004] The purpose of the utility model is to provide a welding mold, which can fix the steel to be welded through an upper top plate, a lower bottom plate, a first bolt and a second bolt. It has the characteristics of convenient use, high sensitivity and simple operation, and solves the welding problems caused by manually holding steel.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] One aspect of an embodiment of the utility model provides a welding mold, which includes: an upper top plate and a lower bottom plate, wherein the upper top plate is arranged at the upper end of the lower bottom plate, and a first part to be welded and a second part to be welded are placed between the upper top plate and the lower bottom plate; a first bolt and a second bolt, wherein the first bolt is threadedly connected to one end of the lower bottom plate through one end of the upper top plate, and the second bolt is threadedly connected to the other end of the lower bottom plate through the other end of the upper top plate, and the first bolt and the second bolt are used to affix and fix the first part to be welded and the second part to be welded.

[0007] In some embodiments, the welding mold also includes a first nut and a second nut, the first bolt cooperates with the first nut to tighten or loosen one end of the upper top plate and one end of the lower bottom plate, and the second bolt cooperates with the second nut to tighten or loosen the other end of the upper top plate and the other end of the lower bottom plate.

[0008] In some embodiments, a triangular groove is formed on the top of the lower base plate.

[0009] In some embodiments, the welding mold also includes a pressure detection module, a processing module and a display module. The pressure detection module is used to detect the welding pressure of the first part to be welded and the second part to be welded, and the processing module is respectively connected to the pressure detection module and the display module.

[0010] In some embodiments, the pressure detection module includes a strain gauge, a first resistor, a second resistor, a third resistor and an amplifier circuit. The strain gauge is arranged on the upper top plate, one end of the strain gauge and one end of the first resistor are connected to a power supply, the other end of the strain gauge is connected to one end of the second resistor and the first input end of the amplifier circuit, the other end of the first resistor is connected to one end of the third resistor and the second input end of the amplifier circuit, the other end of the second resistor and the other end of the third resistor are grounded, and the output end of the amplifier circuit is connected to the processing module.

[0011] In some embodiments, the amplification circuit includes an operational amplifier, a fourth resistor, a fifth resistor, a sixth resistor and a seventh resistor, the inverting input terminal of the operational amplifier is connected to the other end of the strain gauge and one end of the second resistor through the fourth resistor, the non-inverting input terminal of the operational amplifier is connected to the other end of the first resistor and one end of the third resistor through the fifth resistor, the non-inverting input terminal of the operational amplifier is grounded through the sixth resistor, the inverting input terminal of the operational amplifier is connected to the output terminal of the operational amplifier through the seventh resistor, and the output terminal of the operational amplifier is connected to the processing module.

[0012] In some embodiments, the pressure detection module also includes a filtering circuit, which includes an eighth resistor and a capacitor, one end of the eighth resistor is connected to the output end of the operational amplifier, the other end of the eighth resistor is connected to one end of the capacitor and the processing module, and the other end of the capacitor is grounded.

[0013] In some embodiments, the processing module and the display module are implemented using computers.

[0014] A welding mold according to an embodiment of the utility model has at least the following beneficial effects: the present application can fix the steel to be welded by means of an upper top plate, a lower bottom plate, a first bolt and a second bolt, and has the characteristics of convenient use, high sensitivity and simple operation, and solves the welding problem of manually holding steel. Moreover, the strain gauge is in close contact with the upper top plate, and the strain of the upper top plate is caused by adjusting the tightness of the screws. The strain of the upper top plate is then transmitted to the strain gauge, causing the strain gauge to deform, so that the metal foil inside is stretched or shortened with the strain. When it is mechanically stretched or shortened, its resistance will change accordingly. Usually, the resistance change rate of the sensitive grid in the strain gauge is a constant and is directly proportional to the strain. Therefore, the strain can be measured by measuring the change in resistance. The stress-strain constitutive equation is established in advance on the computer, so that the applied pressure is presented on the computer screen, the pressure is visualized, and the welding accuracy is improved. The device has high precision, is easy to assemble, and is simple and quick to use.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is a front view of a welding mold according to an embodiment;

[0018] Figure 2 is a top view of a welding mold according to an embodiment;

[0019] Figure 3 is a schematic structural diagram of a lower base plate according to an embodiment;

[0020] Figure 4 4 is a circuit schematic diagram of a pressure detection module according to an embodiment.

[0021] The description of the accompanying drawings is as follows: 1. upper top plate; 2. lower bottom plate; 3. first part to be welded; 4. second part to be welded; 5. first bolt; 6. second bolt; 7. first nut; 8. second nut; 9. triangular groove; 10. pressure detection module; 11. processing module; 12. display module; 13. strain gauge. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0024] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of the present disclosure will be more comprehensive and complete and the concepts of the example embodiments will be fully conveyed to those skilled in the art. The accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0027] The technical solution of the embodiment of the present application is briefly described below:

[0028] According to some embodiments, Figure 1 to Figure 2 As shown, the present application provides a welding mold, the welding mold comprising:

[0029] An upper top plate 1 and a lower bottom plate 2, wherein the upper top plate 1 is arranged at the upper end of the lower bottom plate 2, and a first part to be welded 3 and a second part to be welded 4 are placed between the upper top plate 1 and the lower bottom plate 2;

[0030] The first bolt 5 and the second bolt 6 are threadedly connected to one end of the lower base plate 2 through one end of the upper top plate 1, and the second bolt 6 is threadedly connected to the other end of the lower base plate 2 through the other end of the upper top plate 1. The first bolt 5 and the second bolt 6 are used to fit and fix the first part to be welded 3 and the second part to be welded 4.

[0031] Based on the working principle of the above embodiment, both ends of the upper top plate 1 are provided with through holes, and both ends of the lower bottom plate 2 are provided with threaded holes. The first bolt 5 is threadedly connected with the threaded hole at one end of the lower bottom plate 2 through the through hole at one end of the upper top plate 1, and the second bolt 6 is threadedly connected with the threaded hole at the other end of the lower bottom plate 2 through the through hole at the other end of the upper top plate 1. When the first bolt 5 and the second bolt 6 are loosened, the first part to be welded 3 and the second part to be welded 4 are placed. After the first part to be welded 3 and the second part to be welded 4 are placed, the first bolt 5 and the second bolt 6 are tightened to fix the first part to be welded 3 and the second part to be welded 4.

[0032] The present application can fix the first part to be welded 3 and the second part to be welded 4 by means of an upper top plate 1, a lower bottom plate 2, a first bolt 5 and a second bolt 6, and has the characteristics of convenient use, high sensitivity and simple operation, and solves the welding problem of steel caused by unstable manual support.

[0033] The following is combined with the appendix of this manual Figures 1 to 4 , the preferred implementation modes of the present disclosure are further elaborated in detail.

[0034] According to some embodiments, Figure 1 As shown, the welding mold also includes a first nut 7 and a second nut 8. The first bolt 5 cooperates with the first nut 7 to tighten or loosen one end of the upper top plate 1 and one end of the lower bottom plate 2, and the second bolt 6 cooperates with the second nut 8 to tighten or loosen the other end of the upper top plate 1 and the other end of the lower bottom plate 2.

[0035] According to some embodiments, Figure 3 As shown, a triangular groove 9 is provided on the top of the lower base plate 2 .

[0036] Based on the above embodiment, different upper top plates 1 and lower bottom plates 2 are matched for different types of steel to be welded, and the shape of the mounting groove is changed to fix weldments of different shapes. For steel plate welding, high-strength steel plates parallel to each other are used for assembly, and triangular grooves 9 of different sizes are matched for steel bars of different diameters. The weldment to be welded is placed in the triangular groove 9, and the force applied to the weldment is changed by changing the tightness of the bolts.

[0037] According to some embodiments, Figure 4 As shown, the welding mold also includes a pressure detection module 10, a processing module 11 and a display module 12. The pressure detection module 10 is used to detect the welding pressure of the first part to be welded 3 and the second part to be welded 4. The processing module 11 is connected to the pressure detection module 10 and the display module 12 respectively.

[0038] Further, such as Figure 4 As shown, the pressure detection module 10 includes a strain gauge 13, a first resistor R1, a second resistor R2, a third resistor R3 and an amplifier circuit. Figure 1 to Figure 2 As shown, the strain gauge 13 is arranged on the upper top plate 1 .

[0039] like Figure 4 As shown, the circuit connection structure of the pressure detection module 10 is:

[0040] One end of the strain gauge 13 and one end of the first resistor R1 are connected to a power supply, the other end of the strain gauge 13 is connected to one end of the second resistor R2 and a first input end of the amplifier circuit, the other end of the first resistor R1 is connected to one end of the third resistor R3 and a second input end of the amplifier circuit, the other end of the second resistor R2 and the other end of the third resistor R3 are grounded, and the output end of the amplifier circuit is connected to the processing module 11.

[0041] Based on the working principle of the above embodiment, the strain gauge 13 is in close contact with the upper top plate 1, and the upper top plate 1 is strained by adjusting the tightness of the screw. The strain generated by the upper top plate 1 is then transmitted to the strain gauge 13, causing the strain gauge 13 to deform, so that the metal foil inside is stretched or shortened with the strain. When the strain gauge 13 is mechanically stretched or shortened, its resistance value will change accordingly. When the resistance of the strain gauge 13 decreases, the output of the other end of the strain gauge 13 increases, and the amplifier circuit amplifies the output change of the strain gauge 13 and outputs it to the processing module 11. The stress-strain constitutive equation is pre-established in the processing module 11. The processing module 11 calculates the pressure and displays it through the display module 12. Realize pressure visualization and improve welding accuracy.

[0042] In some embodiments, the processing module 11 and the display module 12 are computers. A stress-strain constitutive equation is established in advance on the computer, so that the applied pressure is displayed on the computer screen, the pressure is visualized, and the welding accuracy is improved.

[0043] According to some embodiments, Figure 4As shown, the amplification circuit includes an operational amplifier U, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a seventh resistor R7, the inverting input terminal of the operational amplifier U is connected to the other end of the strain gauge 13 and one end of the second resistor R2 through the fourth resistor R4, the non-inverting input terminal of the operational amplifier U is connected to the other end of the first resistor R1 and one end of the third resistor R3 through the fifth resistor R5, the non-inverting input terminal of the operational amplifier U is grounded through the sixth resistor R6, the inverting input terminal of the operational amplifier U is connected to the output terminal of the operational amplifier U through the seventh resistor R7, and the output terminal of the operational amplifier U is connected to the processing module 11.

[0044] Further, such as Figure 4 As shown, the pressure detection module 10 also includes a filtering circuit, which includes an eighth resistor R8 and a capacitor C. One end of the eighth resistor R8 is connected to the output end of the operational amplifier U, the other end of the eighth resistor R8 is connected to one end of the capacitor C and the processing module 11, and the other end of the capacitor C is grounded.

[0045] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0046] Although the present disclosure has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present disclosure can be implemented in a variety of forms without departing from the spirit or essence of the present application, it should be understood that the above-mentioned embodiments are not limited to any of the foregoing details, but should be widely interpreted within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A welding mold, characterized in that: The welding mold comprises: An upper top plate and a lower bottom plate, wherein the upper top plate is arranged at the upper end of the lower bottom plate, and a first part to be welded and a second part to be welded are placed between the upper top plate and the lower bottom plate; A first bolt and a second bolt, wherein the first bolt is threadedly connected to one end of the lower base plate through one end of the upper top plate, and the second bolt is threadedly connected to the other end of the lower base plate through the other end of the upper top plate, and the first bolt and the second bolt are used to affix and fix the first part to be welded and the second part to be welded.

2. The welding mold according to claim 1, characterized in that: The welding mold also includes a first nut and a second nut. The first bolt cooperates with the first nut to tighten or loosen one end of the upper top plate and one end of the lower bottom plate, and the second bolt cooperates with the second nut to tighten or loosen the other end of the upper top plate and the other end of the lower bottom plate.

3. The welding mold according to claim 1, characterized in that: A triangular groove is formed on the top of the lower base plate.

4. The welding mold according to claim 1, characterized in that: The welding mold further includes a pressure detection module, a processing module and a display module. The pressure detection module is used to detect the welding pressure of the first part to be welded and the second part to be welded. The processing module is connected to the pressure detection module and the display module respectively.

5. The welding mold according to claim 4, characterized in that: The pressure detection module includes a strain gauge, a first resistor, a second resistor, a third resistor and an amplifier circuit. The strain gauge is arranged on the upper top plate, one end of the strain gauge and one end of the first resistor are connected to a power supply, the other end of the strain gauge is connected to one end of the second resistor and the first input end of the amplifier circuit, the other end of the first resistor is connected to one end of the third resistor and the second input end of the amplifier circuit, the other end of the second resistor and the other end of the third resistor are grounded, and the output end of the amplifier circuit is connected to the processing module.

6. The welding mold according to claim 5, characterized in that: The amplification circuit includes an operational amplifier, a fourth resistor, a fifth resistor, a sixth resistor and a seventh resistor, the inverting input terminal of the operational amplifier is connected to the other end of the strain gauge and one end of the second resistor through the fourth resistor, the non-inverting input terminal of the operational amplifier is connected to the other end of the first resistor and one end of the third resistor through the fifth resistor, the non-inverting input terminal of the operational amplifier is grounded through the sixth resistor, the inverting input terminal of the operational amplifier is connected to the output terminal of the operational amplifier through the seventh resistor, and the output terminal of the operational amplifier is connected to the processing module.

7. The welding mold according to claim 6, characterized in that: The pressure detection module also includes a filtering circuit, which includes an eighth resistor and a capacitor, one end of the eighth resistor is connected to the output end of the operational amplifier, the other end of the eighth resistor is connected to one end of the capacitor and the processing module, and the other end of the capacitor is grounded.

8. The welding mold according to claim 4, characterized in that: The processing module and the display module are computers.

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